Features: Voltage: Battery 1.5 V AAA X 2 EAUsage patterns: A F (6 Pattern) Frequency: 1 ~ 100 HzWorking Hours: 12 Minutes (Per Setup time) Output: Maximum 9.8 mASize: 21 X 10 X 2.3 cmWeight: 57.4 gMade of high quality Polyurethane (PU) material close to your skin good touching feeling and non-toxic. A physical workout device for enhancing your muscles make you can good body shape without even lifting a finger. Using advanced technology scientifically exercising your muscles will not harm your body. According to suitable power and speed on body by low frequency which makes a rhythm and sort impetus on body. Electromagnetic pulses help firm and define your core with strengthening muscle contractions. Muscle training when working in office cleaning house or any place you want. Package Included: 1 x Abdomen Sticker2 x Shoulder Sticker3 x Sticker Controller (USB charging) 1 x USB Cable